A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 5920-01-153-7487
NSN 6240-00-811-7162
NSN 6685-01-607-1192
NSN 4140-00-222-2186
NSN 6610-00-256-8006
NSN 6130-00-730-7411
NSN 5855-01-569-7816
NSN 6320-01-444-7340
NSN 6320-01-397-9954
NSN 6150-00-234-9249
NSN 6145-01-418-5738
NSN 5930-01-211-6894